diff --git a/Gemfile.lock b/Gemfile.lock
index dd4582a..e4eb7dd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -52,7 +52,7 @@ GEM
     debug_inspector (0.0.2)
     erubis (2.7.0)
     execjs (2.7.0)
-    ffi (1.9.14)
+    ffi (1.15.3)
     globalid (0.3.7)
       activesupport (>= 4.1.0)
     i18n (0.7.0)